<template>
  <!-- 新增部门弹层 -->
  <el-dialog title="新增部门" :visible="showDialog">
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <el-form label-width="120px" :model="formData" :rules="rules">
      <el-form-item label="部门名称" prop="name">
        <el-input
          v-model="formData.name"
          style="width:80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input
          v-model="formData.code"
          style="width:80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select
          v-model="formData.manager"
          style="width:80%"
          placeholder="请选择"
          @focus="getEmployeesSimple"
        >
          <el-option
            v-for="item in peoples"
            :key="item.id"
            :label="item.username"
            :value="item.username"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="formData.introduce"
          style="width:80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <el-row slot="footer" type="flex" justify="center">
      <!-- 列被分为24 -->
      <el-col :span="6">
        <el-button type="primary" size="small">确定</el-button>
        <el-button size="small">取消</el-button>
      </el-col>
    </el-row>
  </el-dialog>
</template>

<script>
import { getDepartments } from "@/api/departments";
import { getEmployeesSimple } from "@/api/employees";
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    treeNode: {
      type: Object,
      default: null
    }
  },
  data() {
    // 定义一个函数  去找 同级部门下 是否有重复的部门名称
    const checkNamerepeat = async (rule, value, callback) => {
      // 先要获取最新的组织架构数据
      const { depts } = await getDepartments();
      const isReapt = depts
        .filter(item => item.pid === this.treeNode.id)
        .some(item => item.name === value);
      isReapt
        ? callback(new Error(`同级部门下已经有${value}的部门了`))
        : callback();
    };

    // 检查部门编码是否重复
    const checkCodeRepeat = async (rule, value, callback) => {
      // 获取最新的组织架构的数据
      const { depts } = await getDepartments();
      const isRepeat = depts.some(item => item.code === value && value);
      // 这里加一个 value 不为空 因为我们的部门有可能没有 code
      isRepeat
        ? callback(new Error(`组织架构中已经有部门使用${value}编码`))
        : callback();
    };
    return {
      peoples: [],
      formData: {
        name: "", // 部门名称
        code: "", // 部门编码
        manager: "", // 部门管理者
        introduce: "" // 部门介绍
      },
      rules: {
        name: [
          { required: true, message: "部门名称不能为空", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "部门名称要求1-50个字符",
            trigger: "blur"
          },
          { validator: checkNamerepeat, trigger: "blur" }
        ],
        code: [
          { required: true, message: "部门编码不能为空", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "部门编码要求1-50个字符",
            trigger: "blur"
          },
          { validator: checkCodeRepeat, trigger: "blur" }
        ],
        manager: [
          { required: true, message: "部门负责人不能为空", trigger: "blur" }
        ],
        introduce: [
          { required: true, message: "部门介绍不能为空", trigger: "blur" },
          {
            trigger: "blur",
            min: 1,
            max: 300,
            message: "部门介绍要求1-50个字符"
          }
        ]
      }
    };
  },
  methods: {
    // 获取员工简单列表数据
    async getEmployeesSimple() {
      this.peoples = await getEmployeesSimple();
    }
  }
};
</script>
